“Researchers from ETH Zurich have developed a novel technology that produces liquid hydrocarbon fuels exclusively from sunlight and air. For the first time worldwide they demonstrate the entire thermochemical process chain under real field conditions. The new solar mini-refinery is located on the roof of ETH’s Machine Laboratory building in Zurich…”
For More: https://www.ecnmag.com/news/2019/06/carbon-neutral-fuel-made-sunlight-and-air